Pile-wire head



Sept. 16, 1930. G. DALKQWITZ 1,175,933

FILE WIRE HEAD Filed Opt. 11; 1926 2 Sheets-Sheet 1 ATTO R N EY Sept.16, 1930. I G, DALk nfz 1,175,933

FILE WIRE HEAD Filed Oct. 11. 1926 2 Sheets-Sheet 2 INVENTOR 40 1/4 mATTORN EY BY Mm/ Patented Sept. 16, 1930 UNITED STATES PATENT OFFICEGODFREY DALKOWITZ, OF NEW YORK, N. Y., ASSIGNOR TO THE LOX SEAL CORPORA-TION, OI BROOKLYN, NEVT YORK, A CORPORATION OF NEW YORK FILE-WIRE HEADApplication filed October 11, 1926.

My present invention relates to pile wires for looms, and has particularreference to heads for holding the pile wires.

The manner in which the manufacture of pile fabrics subjects theconnection between the pile wire and its head to stresses makes itessential that the pile wire heads or holders grip the wires firmly andretain their grip during the reciprocatingmotion of the wires and theiraccompanying stresses and strains.

It is among the objects of the present invention to provide a holder ofthis character. More particularly, it is an object of the in vention toprovide a holder and a connection thereof to the wire which will be ofextremely simple construction and therefore inexpensive to manufactureand which will not adversely affect the weaving operation.

In accordance with the requirements of looms, I provide a holder or headwhich is substantially flat, and it is a feature of my invention toprovide a longitudinal bore therein, into which the wire may beinserted, and in which the wire may thereupon be treated so as to secureit within the holder.

' More particularly, a feature of my invention lies in providing atransverse bore in communication with the longitudinal bore, therebyrendering a portion of the wire accessible for treatment through saidtransverse bore.

In one of the embodiments which I have herein illustrated, and which Ishall hereinafter describe more fully, the holder or head comprises alaminated or multiple-ply structure wherein spaced complementary stampings are adapted to receive the wire thereinbetween and wherein aspacing member cooperates with these stampings in a manner whichprovides the bores referred to.

In another embodimentherein illustrated, the longitudinal bore isproduced by providing a groove in an edge of a substantially fiat memberand in thereupon blocking a portion of the groove by an insert.

In a preferred embodiment, the transverse bore is so positioned withrespect to the completed longitudinal bore that the inner end of thewire is rendered accessible for the purposes specified. Thus, in onemethod of car- Serial No. 140,773.

rying out my invention, the spacing member or intermediate lamination isprovided with a slit which is so disposed in relation to registeringopenings in the outside laininations that the end of the pile wire isbrought into registry with these registering openings. In anotherembodiment, the groove insert which serves to provide the longitudinalbore by means of its disposition in the groove of a fiat member, isprovided with an end or hooked portion which serves to define the innerlimit of the bore; and by defining this limit at a proper predeterminedposition, the end of the pile wire may similarly be brought intoregistry with the transverse bore referred to.

In general, it is a feature of my invention to provide a pilewire andholder wherein the former is disposed within a longitudinal bore orsheath, and wherein a portion of the wire is treated so as to deflect itout of the true axis of the bore, thereby locking it in position. Thisdeflection is made to occur at a point where a transverse bore isprovided, the transverse bore communicating with the longitudinal bore.

For the attainment of the foregoing objects and such other objects asmay hereinafter appear or be pointed out, I have illustrated severalembodiments of my invention in the accompanyingdrawings in which Fig. 1is an unassembled view of a laminated type of holder, showing therelative disposition of the elements of the holder and of the pile wireto be held;

Fig. 2 is an elevational view of a pile wire associated .with a holderof this character, a portion of this figure being broken away for thesake of clearness;

Fig. 8 is a cross-sectional view taken along the line 3-3 of Fig. 2;

Fig. 4 is a fragmentary perspective view, showing a modification of theholder in unassembled condition;

Fig. 5 is a perspective view, showing the association of a wire with aholder of the type shown in Fig. i;

Fig. 6 is a cross-sectional view taken along the line 66 of Fig. 5;

Fig. 7 is a view similar to Fig. 2, showing a further modification;

Fig. 8 is a cross-sectional view taken along the line 8 8 of Fig.7; andj j Fig. -9 is a perspective view of an insert of the character used inthe construction of Fig-" ures 7 and 8-;

Referring to the drawings, and particularly.

7 to Figures 1, 2, and 3, it will be observed that I have shown "a pilwire 10 ea le threeply structure for holding' the wire in position. Thisstructure comprises superposed stamp.

, ings 11, 12, and 13, thesestampings being substantially flat, andpreferably entirely fiat, as illustrated; they. are preferably made ofmetal, whereby they may be assembled in superposed positions andattached together by any suitable meanssuch as spot-weld ing Ihave-shown these stamplngs provided with openings and configurat onswhich are of importance in the matter of associating the. assembledholder with the loom. In connection withthe presentinvention,the-i1nportant structural features arethe register iiiigopeningsfllet andlo'provided .in the st-ampings' 11" and 18, and'theslit orcut-out p'ortion'1'6 provided in the stamping 12'; The

l-atteris preferably made of a thickness substantiallyequal to thethickness'of-the wire 10,: and the slit'16'is preferable of a width 1substantially identical with the width of, the

wire110,.whereby the latter may be disposed I within the slit 'i nzasnugmanner. The slit when it'is properly and "completely inserted 16 so.disposed. and isof such a length,

I that -thele ndof theWirelOiwill be brought intoregi'stry with theopenings 14 and 15,

intoithe 81a =16.

.It will-be understood that-thewireisi inserted into the 'slit' 16.until the stampings 11, 125 and'i13 have been properly assembled;

They are assembled by )superposin'g them my inner endof the latterispreferably enlarged ina manner wherebythe assembled device will embody atransverse bore communicating with theinne'r end of thelongitudinalbore,"

,7 this transverse bore bei g constituted or the j 5 iregisteringopenings. 14' and 15, and the enlarged inner end 1716f the slit 16. Itwill now be observed that after the holder has been assembled, the wire10 may be inserted into the store which has 'b'eIiIpTfQVideCh the innerend 18 ofthe wire being limited by the end of the/slit 1'6, and the endportion ofthewire"adjacent to the end 18 being "p0:

i i sitioned-in registry'with-the tra'nsvers'ejbore so thatitis're'ndered ae'eessible'fo'r subsequent itreatment; T w i Referenceto FiguresQand 3 will indicate the wire in position. The transverseboreis preferably made circular incross-section, its 'diameterbeinggreater than either of-the dimensions of the rectangular longitudinalbore; In this manner, it will be observed 7 that thesend of the wire 10may be expanded in any transverse direction, thereby providingaheadwhich will prevent withdrawal of the wirethrough thelongitudinal bore.Al-

though the method of treatment is more or less optional, I prefer toutilize the transverse bore for the purpose of applying an instru- 1*mentalitysuch asa punch or die, to the end of the wire .10, and ,Iexpandthis end in all directions." 1 In Fig. .3, :I have shown. theef-..

fect of applying a punch, and it will bejob-f a preferred methodoftreatme-nt for looking I served that a kink is provided whiclrdefiectsi the end of the wire out of the-true aXis of the longitudinal bore,andin a direction which is axial with respect to the transverse;

here; This deflection;isyaccoinpanied'by fiatteningof-the metal whichserves to expand the wire in the other transversefdireca011,:thereby'increasing' the effectiveness of I the expansion. "Afterthepilewire hasbeenm- 7 treated in this manner, I prefer to fill up thetransverse bore by the insertion of solder" "thereinto, and. it willbeobserved that this;

applicationof solder will still further ena; hance the security fthegrip; f It 7 ill be thus seen that in its broadest aspect thisembodiment of myinvention comprises spaced "complementary stamping's 11and, 1 3, and a spacing member: 12; which serves not onlyto properlypositionthe other twostampings but also toguide thepile wire intoproperv position with respect to thefopen ings' l'fls'and .15. t i

. In Figs. 4,; .5 and 6, havexillustrated other 'me'thod of producingthe longitudinal; T and transversebores. In this construction,

substantially flat stanipi ng lt), having a 'thickness substantiallyequivalent tothe combined thickness of the laminations of Fig; 1,11 pr vvided adong tud nal groove 20-.eXtend--.

ing'inwardly from a longitudinal edge 21,.

Thisigroove maybe provided in anysuitable I i I .ordesired manner, and Iprefer to produce.

the groove by milling. :The depth of the,

groove is made greater-than the width of the? I insert a-: stri p.having .a depth less than the depth of the groove and hav groove so as]to" close up 1 this ,oute-r'fportion and provide ailongitudinal*boreethereunder inv a length substantially equal t that of th growei-This strip or ihsert 221s fixedly positioned along-the outeriyportionof the pile wire, the'widthiof the grooveismade substantiallyequal to the thickness ofthe i' pilewire; Afterthegroove has been formedof suitable dimensions for the reception of I thefpilewiir'e. i Inotherwords', thediflerence between the -depthof the groove 2 0. and Tthe;

I the groove.

though it will be understood that their particular configuration is moreor less optional. In 1 1g. 6 l have illustrated a preterred method oftreating a portion of the pile wire after it has been inserted into thebore. By the application of a punch or die through the transverse boreconstituted of the openings 23 and 2d, the accessible portion of thewire is deflected out of the axis of the longitudinal bore and in adirection which is substantially axial with respect to the transversebore. This deflection again provides a kink which serves to hold thewire in position,

and the kink is accompanied by an expansion in the other transversedirection, this eX- pansion'being permitted by the elongation of theopenings 23 and 24k, and being effective in increasing the security withwhich the wire is held. Here too, the openings 23 and 2% may besubsequently filled up with solder, thereby increasing the hold upon thewire and producing a neat and workmanlike effect.

In a conrtruciion having a general nature such as that illustrated inFigures l, 5, and 6, I prefer to provide the insert 22 in the form ofhooked insert 25 (Fig. 9), for a purpose presently to be described.Reference to Figures 7, 8, and 9, will illustrate an embodiment whereinthis hooked insert effects the carrying out of a feature oi myinvention. The insert is provided with a hook or inner portion 26 whoseoutside surface 27 conforms with theend surface of the milled groove,and whose depth is substantially equal to that of The length of the hook26 is properly co-related with the position of the openings 23 and 24 sothat a shoulder 28 is provided which registers with the innermostsurfaces of these transverse openings. The transverse bore is hereinconstituted of the openings 23, 2d, and the shoulder 28, and the latterconstitutes an inner limit for the longitudinal bore which has beenprovided. This inner limit serves to position the end of the pile wire10 in registry with the transverse bore, thereby permitting the end tobe treated in a manner much the same as the end was treated in Figures1, 2, and 3.

In connection with the last described embodiment, it will be obviousthat the hook 26 in ay be dispensed with entirely, and the openlugs 28and 2% may be suitably positioned t5 bring the transverse bore intocommunication with the end portion of the longitudinal bore. In aconstruction of this character, the groove may have to beprovidedotherwise than by milling, so that the circular end of thegroove may be avoided.

It will thus be observed that I have provided a holder which isparticularly eflicient "from the standpoint of gripping the pile wire,and which is of extreme simplicity from the standpoint of manufacture.It will be obvious that many changes in the details herein described.and illustrated for the purpose of explaining the nature of my inventionmay be made by those skilled in the art without departing from thespirit and scope of the invention as expressed in the appended claims.It is therefore intended that these details be interpreted asillustrative and not in a limiting sense.

Having thus describedmy invention and illustrated its use, what I claimas new and desire to secure by Letters Patent is 1. A pile wire headcomprising a flat stam ping having a groove in an edge thereof and agroove insert blocking the end of the groove open to said edge toprovide a recess'thereunder for the reception of a pile wire.

2. A pile wire holder comprising a substantially flat structure having alongitudinal groove in an edge thereof, having also a transverse borecommunicating with said groove, and a groove insert carried within theouter portion of the groove to constitute a longitudinal borethereunder, said insert having an enlarged inner end providing ashoulder which registers with the transverse bore and provides an endstop for the inner end of a pile wire inserted into the longitudinalbore.

A flat pile wire head comprising spaced side walls adapted to sandwich apile wire tlierebetween, a body having a thickness equal to thethickness of said walls and space and having its outer portions integralwith said walls, and an insert interposed between said walls and havingan edge which overlies the edge of the sandwiched pile wire.

4:. Atlat pile wire head comprising spaced side walls adapted tosandwich a pile wire therebetween, said walls having registeringopenings, a body having a thickness equal to the total of said walls andspace and having its outer portions integral with said walls, and aninsert interposed between said walls and having an edge which overliesthe edge of the sandwiched pile wire and guides the latter intopredetermined position with its sandwiched end aligned with saidopenings.

5. A pile wire head comprising a flat element with a main portion oftotal head thickness and an integral split portion providing spaced sidewalls, said walls having registering openings therethrough, and ashouldered insert interposed between said walls and so constructedas toprovide a longitudinal bore thereunder and between said walls for theaccommodation of a pile wire, said shoulder said openings.

bei'ngpositioned to limit the insertion of the pile wire into said boreso that the inner-end portion of the 6. A pile wire hea d comprising aflat stamping having a groove in an edge thereof, the

V opposite walls of said groove being provided with registeringopenings,and a groove insert hlocking'the end of the grooveopen to said edge andprovided with an inner edge which guides a pile wire into the recessprovidedhe neath the insert with the inner end portion 7 ofthe pile wirealignedwith said openings.

V 7 A. pile wire head Comprising a flat stamping having Ia'groove inanedge thereof, and a groove insert'hlocking't-he end of the groove opentosaid edge through itstotal length to provide a recess thereunder forthe reception of a pile wire, said insert heingeonstruoted to block theentire. depth of groove, at the inner end thereof. so as to limittheinward I 1 movementof the pile wire into said recess.

' 8. A fiat head having a longitudinal groove from its forward end alonga portion of one side edge eXtendingin-I depth inwardly pare allel tothe width ofthe head, a pile wlre having an end seatedin the groove andmeans 7 U pile wire: end to place on its fastening the seat.

In testimony 'whereoh I have hereunto signed my name.

. GODFREY 'DALKOWITZ.

pile wire willhe aligned with

